import pandas as pd
from matplotlib import pyplot as plt
plt.rcParams['font.sans-serif']='SimHei'
df['历史总订单数(单)']=df['历史总订单数(单)'].apply(lambda x:x if type(x) !=str else x.replace('+','')).astype('int')
df_new = df[df['历史总订单数(单)']==1]
df_old = df[df['历史总订单数(单)']>1]
plt.figure()
data=[df_new.index.size,df_old.index.size]
plt.pie(data,labels=['新客户','老客户'],autopct='%,2f%%')
plt.title('新老客户人数占比饼图')
plt.show()
plt.figure()
data=[df_new['总交易金额(元)'].sum(),df_old['总交易金额(元)'].sum()]
plt.pie(data,labels=['新客户','老客户'],autopct='%,2f%%')
plt.title('新老客户总交易金额占比饼状图')
plt.show()
x=['新客户','老客户']
h1=df_new['总交易金额(元)'].sum()/df_new.index.size
h2=df_new['总交易金额(元)'].sum()/df_new.index.size
height=[h1,h2]
plt.bar(x,height,width=0.3)
plt.ylabel('客单价/元')
plt.title('新老客户客单价柱状图')
for a,b in zip(x,height):
    plt.text(a,b,'%.1f'%b,ha='center')
plt.show()